Witnesses who fear retribution from criminals should be allowed to conceal their identities when testifying in court, Nottinghamshire's chief constable urged yesterday.

Steve Green made the call in an interview with the Guardian, as he pledged to do everything in his power to catch the killers of 14-year-old Danielle Beccan, shot dead in Nottingham on Saturday. Danielle, who had no gang or criminal links, seems to have just been in the wrong place at the wrong time.